Word: mushrooms
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Dates: during 1950-1959
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...move the tiniest unseen electrons must also govern the macrocosms of intergalactic space. Einstein's scratchpad theorems broke through the thought barriers of knowledge and rewrote the basic scientific law of the universe. The now-mundane miracle of television is a splinter off Einstein's achievement; the mushroom clouds of atomic fission and hydrogen fusion are his unwanted monuments; mankind's chance to turn earth-shaking force into good is his legacy...
...switches, condensers, coils, filaments and generators. There are safety checks along the way, fuses and other devices that can take back Dr. Graves' decision up to half a second before the zero second, but if all goes well, the current at last rams into the device, and a mushroom cloud stands miles high over the concrete bunker where Dr. Graves gave the word...
...years [March 21]". While I am considerably short of 30 years in high-school service, I have inhaled a great deal of that insidious white stuff which produces "the secret decay." (Laymen may not know that some times after a concussion of erasers on the blackboard, the familiar mushroom cloud of dust rises high in the air and results in heavy fallout many feet from the point of origin.) After a long hard look in the mirror, it seemed obvious at first that I had it. What else could account for the receding hairline, the dewlap under the chin...
...educated guessers, gets much of its energy from uranium 238, the plentiful isotope of uranium that used to be considered inert and nonfissionable. In theory, such an explosion is entirely possible. So are many other new reactions. Man's armory of nuclear ingredients is growing like a mushroom cloud...
Newsmen huddled on cold (10°), windy (40 m.p.h.) Mt. Charleston, nearly 50 miles away, muttered with frustration. The blast was a disappointment: the sky lit up with a dull red glow for a second; the mushroom cloud was hidden in the dark overcast; the sound bounced over Mt. Charleston completely...